Developed in the later half of the 20th century, the 9×18 Makarov is a Russian pistol and submachine gun cartridge.
While Makarov PM is the most well-known pistol for this caliber, approximately 30 other pistols and submachine guns support this caliber as well.
Note: The 9×18 Makarov is not the same as 9×19 Luger. Do not mix!
